WASHINGTON, March 24 (Reuters) - A senior State Department official on Tuesday said that the U.S. still is assessing how to implement President Donald Trump's order to resume U.S. nuclear weapons ...

Aalo Atomics has unveiled its Critical Test Reactor at INL to validate the core physics and control systems of its Aalo-X ...

Add Yahoo as a preferred source to see more of our stories on Google. A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) (U.S. Atomic Energy ...

Discover the dramatic story behind the Tsar Bomba, the largest nuclear weapon ever detonated. This video explores its Cold ...

Donald Trump’s command for the United States to resume nuclear weapons testing will not include explosive tests, for now, according to Energy Secretary Chris Wright. Wright, whose agency oversees the ...

Energy Secretary Chris Wright said Sunday that the Trump-ordered nuclear weapons tests will not involve explosions of any kind. “I think the tests we’re talking about right now are system tests,” ...

A senior State Department official on Tuesday said the U.S. still is assessing how to implement President Donald Trump's ...

The U.S. Department of Energy (DOE) has launched a novel pilot program that will allow private developers to build and operate full-scale advanced nuclear test reactors outside of the national ...

Add Yahoo as a preferred source to see more of our stories on Google. Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, ...